p,l,a,y,g,r,o,u,n,d,用这些字母组成12个单词.

问题描述:

p,l,a,y,g,r,o,u,n,d,用这些字母组成12个单词.
快,一定是12个

playground,play,ground,round
pray,pound.pond,young
loud,proud,your,pour
plug,land,road,gold
glad,lord,yard